When all you've got is a magazine or some over-played smartphone games at your disposal, waiting out airport delays is a nightmare. But not if your carry-on luggage opened to reveal an epic water park inside, instead of clothing.
In fact, you might actually be glad to be bumped from an over-sold flight and put on standby if you had this 52-inch long $113 (plus overseas shipping) playset in tow that includes fun activities like a hand-cranked water turbine, a crane for lifting boats, a wave maker, and a race course around its perimeter.
You don't need to add any batteries, but you will need to add one-and-a-half gallons of water to really enjoy what this unfolding suitcase has to offer. Just don't bother filling it until after you've made it through airport security because that much H2O is a TSA no-no these days.